hood release GMC ENVOY 1999 Owners Manual

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2-63
A. Air Vents
B. Instrument Cluster
C. Automatic Transfer Case
D. Glove Box
E. Audio System
F. Rear Window Defogger
G. CD Changer
H. Ashtray
I. Comfort ControlsJ. Accessory Power Outlets and Lighter
K. Rear Liftglass Release
L. Rear Window Washer/Wiper
M. Audio Steering Wheel Controls
N. Brake Release
O. Hood Release
P. Fog Lamps
Q. Lamp Controls
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4-23

When driving downhill, avoid turns that take you
across the incline of the hill. A hill that's not too
steep to drive down may be too steep to drive across.
You could roll over if you don't drive straight down.

Never go downhill with the transmission in
NEUTRAL (N). This is called ªfree
-wheeling.º Your
brakes will have to do all the work and could
overheat and fade.
Q:Am I likely to stall when going downhill?
A:It's much more likely to happen going uphill. But if
it happens going downhill, here's what to do.

Stop your vehicle by applying the regular brakes.
Apply the parking brake.

Shift to PARK (P) and, while still braking, restart
the engine.

Shift back to a low gear, release the parking brake,
and drive straight down.

If the engine won't start, get out and get help.
Driving Across an Incline
Sooner or later, an off-road trail will probably go across
the incline of a hill. If this happens, you have to decidewhether to try to drive across the incline. Here are some
things to consider:

A hill that can be driven straight up or down may be
too steep to drive across. When you go straight up or
down a hill, the length of the wheel base (the distance
from the front wheels to the rear wheels) reduces the
likelihood the vehicle will tumble end over end. But
when you drive across an incline, the much more
narrow track width (the distance between the left and
right wheels) may not prevent the vehicle from tilting
and rolling over. Also, driving across an incline puts
more weight on the downhill wheels. This could cause
a downhill slide or a rollover.

Surface conditions can be a problem when you drive
across a hill. Loose gravel, muddy spots, or even wet
grass can cause your tires to slip sideways, downhill.
If the vehicle slips sideways, it can hit something
that will trip it (a rock, a rut, etc.) and roll over.

Hidden obstacles can make the steepness of the
incline even worse. If you drive across a rock with
the uphill wheels, or if the downhill wheels drop into
a rut or depression, your vehicle can tilt even more.
For reasons like these, you need to decide carefully
whether to try to drive across an incline. Just because the
trail goes across the incline doesn't mean you have to
drive it. The last vehicle to try it might have rolled over.
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6-8
Checking Things Under the Hood
CAUTION:
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.
To open the hood, first pull
the handle inside the vehicle
on the lower driver's side of
the instrument panel.Then go to the front of the vehicle and release the
secondary hood release.
Lift the hood, release the hood prop from its retainer and
put the hood prop into the slot in the hood. You may
have a lamp that comes on when you lift the hood.
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7-40 At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield. Also see ªWiper Blades,
Cleaningº in the Index.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. (See ªRecommended Fluids and Lubricantsº in
the Index.)Automatic Transmission Check
Check the transmission fluid level; add if needed. See
ªAutomatic Transmission Fluidº in the Index. A fluid
loss may indicate a problem. Check the system and
repair if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part D.
Body Lubrication Service
Lubricate all hood hinges, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
door hinges, fuel door hinge, endgate hinges, outer
tailgate handle pivot points, tailgate hinges, tailgate
mounted spare tire carrier (if equipped), locks, glove
box, console doors, moving seat hardware and folding
seat hardware. Part D tells you what to use. More
frequent lubrication may be required when exposed to a
corrosive environment.
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7-46
USAGEFLUID/LUBRICANT
Front AxleSAE 80W-90 Axle Lubricant (GM
Part No. 1052271 or equivalent).
Rear Axle
(Locking
Differential)SAE 80W-90 Axle Lubricant; use
only GM Part No. 1052271. Do
not add friction modifier.
Automatic
Transfer CaseAutomatic Transfer Case Fluid
(GM Part No. 12378396).
Rear Driveline
Center Spline
and Universal
JointsChassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI # 2, Category LB
or GC
-LB.
Constant
Velocity
Universal JointChassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI # 2, Category LB
or GC
-LB.
USAGEFLUID/LUBRICANT
Hood Latch
Assembly,
Secondary Latch,
Pivots, Spring
Anchor and
Release PawlLubriplate
Lubricant Aerosol
(GM Part No. 12346293 or
equivalent) or lubricant meeting
requirements of NLGI # 2,
Category LB or GC
-LB.
Hood and Door
HingesMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Outer Liftgate
Handle Pivot
Points and
HingesMulti-Purpose Lubricant,
Superlube
(GM Part
No. 12346241 or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM
Part No. 12345579 or equivalent).
Weatherstrip
SqueaksSynthetic Grease with Teflon,
Superlube
(GM Part
No. 12371287 or equivalent).
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9-5
Headlamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam Changer 2-35 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . .
Heated Front Seats 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heated Outside Rearview Mirror 2-45 . . . . . . . . . . . . . . . . . . .
Heating 3-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Intensity Discharge Lighting 6-32 . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-34 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood, Checking Things Under 6-8 . . . . . . . . . . . . . . . . . . . . .
Horn 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition
Positions 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Lock Check 7-42 . . . . . . . . . . . . . . . . . . . . . .
Illuminated Entry 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire 6-38, 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflator, Accessory 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspections
Brake System 7
-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling System 7-43 . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Systems 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Boot Seal 7-43 . . . . . . . . . . . . . . . . . . . . .
Steering 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrument Panel 2
-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jacking Equipment 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key in the Ignition 2-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-40 . . . . . . . . . . . . . . . . . . . . . .
Keyless Entry System 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification/Tire 4-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse 6-56, 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt 1-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-54 . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-54 . . . . . . . . . . . . . . . . . . .
Lamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Reading 2-43, 2-47 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-27 . . . . . . .
Liftgate 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Release 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Release 2-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liftglass 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lighter 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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